We stayed for 5 nights with some friends, staying in 3 rooms. Myself and partner stayed in the room with rooftop access.
Dogpound Hotel is a very convenient location, a couple of minutes walk from Monistiraki metro station (which goes from the airport), and near to many tourist sites, places to eat, etc. The staff were all friendly and welcoming. The room was clean and all rooms that we saw were similarly modern and clean - one had balcony access with a table and hammock (also lovely for chatting with friends).
There was an issue with the hot water not working on the first morning (unrelated to turning on the boiler), but they fixed it the same day and no issues for the rest of our stay. The breakfasts were amazing. We all tried different options and were happy with all of them, in particular, the overnight breakfast bowl and the egg/salsa were most popular. We never explored anywhere else for breakfast as we really enjoyed the food here.
The main concern for our room was the stairwell didn't leave much space on one side of the bed, making it difficult for the person on that side to get in and out of the bed. It also made accessing the storage area for clothes difficult, so I wouldn't recommend this room for those with mobility challenges (perhaps the balcony access option might work better).